import matplotlib.pyplot as plt
# 	y vs.的散点图--scatter
# x_values = [1,2,3,4,5]
# y_values = [1,4,9,16,25]

x_values = list(range(1,1001))
y_values = [x**2 for x in x_values]
plt.scatter(x_values, y_values,c=y_values,cmap=plt.cm.Blues,edgecolors='none', s=40)
# 设置图标标题并给坐标轴加上标签
plt.title("Square Numbers", fontsize=24)
plt.xlabel("Value", fontsize=14)
plt.ylabel("Square of Value",fontsize=14)
# 设置刻度标记大小
plt.tick_params(axis='both', which='major', labelsize=14)
# 设置坐标轴的取值范围
plt.axis([0,1100,0,1100000])
# 自动保存图表
# plt.savefig('aa.png', bbox_inches='tight')
plt.show()